2002222120 has 32 divisors (see below), whose sum is σ = 4537895400. Its totient is φ = 795040768.

The previous prime is 2002222091. The next prime is 2002222121. The reversal of 2002222120 is 212222002.

It can be written as a sum of positive squares in 4 ways, for example, as 1699253284 + 302968836 = 41222^2 + 17406^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2002222120.

It is not an unprimeable number, because it can be changed into a prime (2002222121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 177205 + ... + 188164.

Almost surely, 2^2002222120 is an apocalyptic number.

2002222120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2002222120 is an abundant number, since it is smaller than the sum of its proper divisors (2535673280).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2002222120 is a wasteful number, since it uses less digits than its factorization.

2002222120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365517 (or 365513 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 2002222120 is about 44746.1967098881. The cubic root of 2002222120 is about 1260.3874931493.

Adding to 2002222120 its reverse (212222002), we get a palindrome (2214444122).

The spelling of 2002222120 in words is "two billion, two million, two hundred twenty-two thousand, one hundred twenty".